211100021196 has 24 divisors (see below), whose sum is σ = 492574205424. Its totient is φ = 70365603840.

The previous prime is 211100021173. The next prime is 211100021201. The reversal of 211100021196 is 691120001112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323676 + ... + 1474556.

It is an arithmetic number, because the mean of its divisors is an integer number (20523925226).

Almost surely, 2^211100021196 is an apocalyptic number.

It is an amenable number.

211100021196 is an abundant number, since it is smaller than the sum of its proper divisors (281474184228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211100021196 is a wasteful number, since it uses less digits than its factorization.

211100021196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267481 (or 267479 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 211100021196 in words is "two hundred eleven billion, one hundred million, twenty-one thousand, one hundred ninety-six".